Dynamics 365 Finance & Operations MCP Server

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool tests a connection and returns a dictionary result, but lacks details on what constitutes a successful test, potential errors, side effects (e.g., if it logs attempts), or performance implications. For a connection-testing tool, this leaves significant gaps in understanding its behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is appropriately concise and well-structured, with a clear purpose statement followed by Args and Returns sections. Every sentence earns its place, and it's front-loaded with the main action. However, the 'Returns' section could be more specific (e.g., mentioning keys in the dictionary) to enhance clarity without adding unnecessary length.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's moderate complexity (testing a connection with one parameter) and the presence of an output schema (which should document the return dictionary), the description is minimally complete. It covers the basic action and parameter but lacks behavioral details and usage context. With no annotations, it should do more to explain what the test entails and how to interpret results.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds minimal semantics beyond the input schema. It documents the single parameter 'profileName' and its purpose ('Name of the profile to test'), but with 0% schema description coverage, it doesn't fully compensate by explaining format constraints (e.g., case sensitivity, valid characters) or how to obtain profile names. The baseline is 3 due to the single parameter, but it doesn't add substantial value over the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: 'Test connection for a specific D365FO environment profile.' It specifies the verb ('test connection') and resource ('D365FO environment profile'), making the action unambiguous. However, it doesn't distinguish this from the sibling tool 'd365fo_test_connection', which appears to be a similar testing function without the profile specificity.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools like 'd365fo_test_connection' (which lacks 'profile' in its name) or 'd365fo_validate_profile', nor does it specify prerequisites or contexts for usage. The agent must infer usage from the name and description alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.